Henry r



NITED STATES PATENT EEICE.

HENRY n. BAssLER, oF INDIANAPOLIS, INDIANA.

PN EU MATIC SPRAYER.

SPECIFICATION forming part of Letters Patent No. 618,531, dated January 31, 1899.

Application filed November 6, 1897. Serial No. 657,620. (No model.)

To @ZZ whom it may concern:

Be it known that I, HENRY R. BAssLER, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Pneumatic Sprayers, of which the following is a specification.

The object of my present invention is to provide a cheap and effective distributer for insecticides or disinfectants in either powder or liquid form. In its preferred form it consists of two concentric cylinders of any suitable material, preferably sheet metal, the central one of which is substantially an air-gun and the outer or surrounding one being a reservoir or chamber to contain the material to be sprayed or distributed. At the distributing end the exit openings or nozzles from these two chambers come into close relation, and said distributing end has other peculiarities, as will be hereinafter described. While for reasons hereinafter given I prefer the construction wherein the reservoir surrounds the air-cylinder, I do not wish to be understood as limiting myself to such an arrangement.

Referring to the accompanying drawings, which are made a part hereof and on which similar numerals of reference indicate similar parts, Figure 1 is a side elevation of one of my improved sprayers with a portion of the outer shell broken away, showing the interior; Fig. 2, a central sectional View of the same; Fig. 3, a transverse `sectional view, on an enlarged scale, as on the dotted line 3 3; and Fig. 4, a View of the distributing end of the device as seen from the dotted lines 4 4 in Figs. 1 and 2.

The air-cylinder 1 is a plain cylindrical structure of suitable size and length, having at one end a plain head 2, containing a perforation, through which the piston-rod passes, and a conical head 3 at the other end, which conical head extends out, and in the arrangement shown also forms a head to the reservoir. It has an ingress-opening, as 4, at or near its upper end, through which air may be admitted, and in the conical head 3 is an exit-nozzle 5, through which the air is forced in operation. Within this air-cylinder is an ordinary piston-rod 6, having on its lower end a pistonhead 7 andon its upper end a handle 8. I also preferably provide a collar 9 at a suitable point, as shown, which serves as a stop to limit the downward stroke of the piston.

The outer cylinder or material-reservoir 10, as hereinbefore indicated, preferably surrounds the air-cylinder 1, but has no communication therewith. An opening is provided in one side to introduce the material, which opening is adapted to be closed by any suitable cover 11 or other stopper. As before stated, the conical head 3 of the cylinder 1 also serves as the lower head to this reservoir, the upper head being formed by a suitable ring 12, extending from the upper end thereof to the outer wall of the air-cylinder 1, which also forms the inner wall of this reservoir in the construction shown. A discharge-nozzle 13 extends out from the lower end of this reservoir to a point adjacent to 4the nozzle 5, so that the air-blast from said nozzle 5 will be driven sharply across the oriice in the nozzle 13. The outer wall of the reservoir 10 projects beyond the head 3 and formsthe wall of a chamber open on one side, the other side being closed by the cone-shaped piece 3. The form of this chamber causes the material which is discharged from the reservoir and which is forcibly thrown out under the impulse of the blast from the airchamber to be finely separated and widely distributed in the form of a line mist if the material be a liquid, and in the form of a dust spray if the material be a powder.

As is Well known, the compression of air in anykind of an air-pump generates heat, and therefore, while it is not essential to the operation of my invention that the reservoir or chamber 10 should surround the air-cylinder, it is of considerable advantage, because, as will be readily seen, especially Where the liquid is used, it serves to take up the heat so generated and protect the hand of the user therefrom, and in any event the immediate air or material will serve this purpose to some extent, even if said material be a powder.

The non-communication between the aircylinder and the reservoir and the peculiar relation between the points of the nozzle are essential features of my apparatus. I have found also by experiment that the conical IOO head to the open-sided distributing-chamber at the end of the apparatus is of considerable importance.

The operation is as follows: The reservoir 10 is filled With the disinfectant or insecticide, in either liquid or powdered form,as may be desired. Great economy of material is obtained by using it in the liquid form owing to the extremely fine and Widely-diffused spray which can be produced. In the ordinary application of such materials-say parisgreen, for instance-there is a very great waste owing to the imperfect distribution, much more being ordinarily used than is required for the purpose of protecting the plants. XVith my apparatus a feaspoonful of paris-green in a quantity of Water, constituting a single charge of the reservoir, (about one pint,) will spray from a thousand to twelve hundred plants, doing the Work more elfectually than half a pound of paris-green used in the ordinary Way, or a teaspoonful of any disinfectant will thoroughly disinfect a large-sized apartment. After the disinfectant or insecticidehas been placed in the reservoir then it is only necessary to Work the piston rapidly back and forth, as the airblast will draw out and throw about in the form of spray or iine powder a minute but sufficient quantity of such material.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a pneumatic sprayer, the combination, of the air-cylinder, a suitable piston therein, a nozzle leading therefrom, a reservoir for the material surrounding said aircylinder, a discharge-nozzle for said reservoir, said two nozzles being arranged Within an open-sided chamber with their dischargeorices in close proximity to each other, whereby the air is forced from one orifice across the other to draw and spray the material therefrom Within said open-sided chamber, substantially as set forth.

2. The combiuation,in apneumatic sprayer, of an air-cylinder, a cylinder surrounding said air-cylinder and forming areservoir or chamber for the material, suitable heads to said'cylinders at the upper end, a cone at the lower end forming a head for both cylinders, a projectin grim from the outercylinder forming, with the cone, a distributing-chamber, nozzles from said aircylinder and said reservoir leading through the cone and having their discharge-orifices close together, and a suitable piston in said air-chamber for forcing air therefrom through its nozzle and past the nozzle of the reservoir, substantially as Set forth.

3. The combination,in a pneumatic sprayer, of an air-cylinder, a reservoir for the material, a conical end to I[he air-cylinder which also forms a portion of the Wall of the reservoir, nozzles leading from said air-cylinder and said reservoir through said conical end, and a suitable piston for forcing the air ont of said cylinder through said nozzle, substantially as set forth.

In Witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this lst day of November, A. D. 1897.

y HENRY R. BASSLER.

Witnesses:

CHESTER BRADFORD, JAMES A. WALSH. 

